Performance Estimation of Fully Digital Polar Modulation driving a 2 GHz Switch-Mode Power Amplifier

被引：0

作者：

Ostrovskyy, Philip ^{[1
]}

Scheytt, J. Christoph ^{[1
]}

Sadeghfam, Arash

Heuermann, Holger

机构：

[1] IHP, Frankfurt, Oder, Germany

来源：

2012 42ND EUROPEAN MICROWAVE CONFERENCE (EUMC) | 2012年

关键词：

sigma-delta modulation; digital-to-RF converter; switch-mode amplifier; polar transmitter; ARCHITECTURE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a fully digital transmitter architecture based on a digital polar modulator (DPM) and switch-mode power amplifier (SMPA). A simple method for comparison and estimation of different digital modulation techniques for SMPA is described. An estimation of the proposed digital polar modulator properties was done by means of a 2.1..2.2 GHz class-F power amplifier. For a CDMA signal with 9.5 dB peak-to-average power ratio (PAPR), the class-F based amplifier module driven by DPM pulse train shows more than 1 W output power and more than 10 % of drain efficiency.

引用

页码：1039 / 1042

页数：4

共 4 条

[1] A Novel Architecture of Delta-Sigma Modulator Enabling All-Digital Multiband Multistandard RF Transmitters Design
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[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2008, 55 (11) : 1129 - 1133
[2] Johnson T, 2004, RAWCON: 2004 IEEE RADIO AND WIRELESS CONFERENCE, PROCEEDINGS, P439
[3] RF Class-D amplification with bandpass sigma-delta modulator drive signals
Johnson, Thomas
Stapleton, Shawn P.
[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2006, 53 (12) : 2507 - 2520
[4] A transmitter architecture based on delta-sigma modulation and switch-mode power amplification
Nielsen, Michael
Larsen, Torben
[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2007, 54 (08) : 735 - 739

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